Mineral Side Rock

Clear Quartz

Silicon Dioxide (SiO2)

Clear Quartz Crystal

Silicon Dioxide (SiO2)

Quartz Crystal (specifically a small Clear Quartz point)

Silicon Dioxide (SiO2)

Amethyst

Amethyst (Silicon Dioxide, SiO2 + Fe4+)

Milky quartz-rich rock

Quartz (SiO₂), likely massive quartz in a quartz vein or quartzite

Garnet (specifically Almandine)

Almandine - Fe3Al2(SiO4)3

Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Tumbled milky quartz (likely quartzite or quartz pebble)

Quartz, silicon dioxide (SiO₂); exact rock type is uncertain from the image

Epidote with Quartz

Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))

Raw black tourmaline (schorl)

Schorl, NaFe²⁺₃Al₆(BO₃)₃Si₆O₁₈(OH)₄

Opalite

Synthetic Glass (Hydrated Crystalline Silicon Dioxide simulation)

Cat's Eye Chrysoberyl

Chrysoberyl (BeAl2O4)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Clear quartz crystal

Quartz (silicon dioxide, SiO₂)

Smoky Quartz

Silicon Dioxide (SiO2)

Quartz-rich vein fragment, possibly quartz with mica or calcite

Quartz (SiO₂), with probable muscovite/biotite mica and minor feldspar or calcite

Quartz geode/druse specimens

Quartz, silicon dioxide (SiO₂), likely iron-stained drusy quartz in a vuggy host rock

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Quartz crystal cluster (likely iron-stained quartz)

Quartz, silicon dioxide (SiO₂); possibly quartz on a sulfide- or carbonate-rich matrix

Likely raw black tourmaline

Schorl tourmaline, NaFe3Al6(BO3)3Si6O18(OH)4

Quartz (Raw Crystal)

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal)

Quartz (Silicon Dioxide, SiO2)

Petoskey Stone

Hexagonaria percarinata

Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Quartz crystal cluster (likely smoky quartz)

Quartz, silicon dioxide (SiO₂)

Milky quartz

Quartz, silicon dioxide (SiO₂)

Raw tourmaline crystal (probable schorl)

Tourmaline group; likely schorl, NaFe3+Al6(BO3)3Si6O18(OH)4

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Epidote

Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))

Smoky quartz crystal

Quartz, silicon dioxide (SiO₂), likely smoky variety

Epidote in Quartz

Epidote (Ca2(Al,Fe)3(SiO4)3(OH)) in Quartz (SiO2)

Clear quartz crystal

Quartz (silicon dioxide, SiO₂)

Amethyst (Druze)

Silicon Dioxide (SiO2) with iron impurities

Milky quartz / quartz vein fragment

Quartz, silicon dioxide (SiO₂)

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Quartz geode / quartz vein fragment

Quartz (SiO₂), likely drusy and massive quartz with minor iron-oxide staining

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)